Frontend frameworks jobs

...identifiers) to prevent duplicate record storage. Required Tech Stack Backend Framework: Python (Django or FastAPI) Scraping & Crawling: Scrapy, Playwright, Selenium, BeautifulSoup Anti-Bot Countermeasures: Rotating residential proxy pools, CAPTCHA bypass, stealth headless browsers Task Queue & Scheduler: Celery + Redis + Celery Beat Database: PostgreSQL (indexed for fast deduplication lookups) Frontend: React.js / with Tailwind CSS or Bootstrap How to Apply Start your proposal with the exact phrase 'SCRAPER ENGINE' to confirm you have reviewed the complete architectural specification. Please submit your proposal with: Relevant Portfolio: 2–3 examples of complex web scrapers, data pipelines, or multi-tenant Django/React applications you have built. Tec...

I need an experienced full-stack engineer who can give special attention to the backend of my platform and raise its security posture across the board. The frontend is in decent shape, but the core services, data layer, and deployment pipeline all need a careful redesign so that every request, record, and secret is handled with industry-grade protection. Here is the outcome I’m after: • A fresh backend architecture that scales cleanly and is resilient against common threat vectors. • End-to-end authentication and authorization flows, encrypted at rest and in transit. • Well-structured APIs with input validation, rate limiting, detailed logging, and automated tests. • Infrastructure-as-code or container scripts so I can spin up identical, hardened en...

...Project Scope Elements: - Central Relational Database: PostgreSQL/PostGIS optimized for location coordinates and hyperlocal radius sharding. - Data Integration Core: Automated e-commerce API scraping (Amazon, Flipkart) paired with background desktop XML accounting syncing modules. - Utility Framework: Fintech API pipelines for bill payments (BBPS) and webhook transaction logging. - Cross-Platform Frontend: Single Flutter codebase running smoothly at 60 FPS across 15 dynamic categories. - AI Voice Navigation: Native microphone integration connected to cloud NLP engines (Google STT / OpenAI Whisper) for instant page deep-linking. - Embedded Frames: Secure, frame-restricted integration of the TradingView Widget API for study purposes. Added Requirements on Cashback Feature: 1. Cash...

...& Desktop Client Extension (Node.js/React/Electron) Description: We are seeking an experienced Full-Stack Developer or small Development Team to build a multi-stage scheduling and session utility platform. The project starts with a custom web booking system (Phase 1) and will expand into a native desktop application (Phase 2). Key Technical Requirements: Backend: Node.js, NestJS, PostgreSQL Frontend: React.js / , TypeScript, Tailwind CSS Desktop Client: Electron (TypeScript) or C# .NET Integrations: Google Calendar/Meet API (OAuth2), Transactional Email, AWS S3, WhatsApp Business API Scope Summary: Phase 1 (Web Platform): Rolling-window availability booking calendar, multi-timezone management, automated Google Meet link generation per host, custom admin database ingestion ...

...service clearly and conversationally Help interested prospects experience or learn more about the product Hand qualified opportunities off for the final sales conversation Keep basic notes on conversations and follow-ups You are not responsible for closing deals. Your primary responsibility is generating qualified opportunities. What We Provide Targeted lead lists Calling scripts and conversation frameworks Product training A simple live product demonstration you can use with prospects Objection-handling and qualification guidance Support throughout the sales process You do not need to source or purchase your own leads. Compensation This role is completely performance-based and uncapped. For every customer originating from an opportunity you generate that becomes a paying c...

...reads the FAQ list and returns the mapped reply. • A fallback response when a question is not recognised, plus a way for me to update the answer file without touching code. • Clear instructions for embedding the widget on any HTML page and for updating the response list. Please keep external dependencies minimal; if you need a small library for the UI that is fine, but avoid heavyweight frameworks. Once everything is working on your demo page, I will test it on my server and release final approval....

I'm seeking a specialist in qualitative research methodologies, specifically for interview data. Key requirements: - Expertise in qualitative research, particularly in interview analysis - Experience in designing and implementing data analysis frameworks - Strong analytical skills to interpret complex data - Ability to provide insights and recommendations based on data - Proficiency in qualitative data analysis software (e.g., NVivo, ) The initial task involves reviewing, correcting, and refining my methodology chapter. Once completed, assistance with data analysis will follow. Ideal candidates will have a background in social sciences or a related field and proven experience in qualitative data analysis.

...action (list, post, pay, message) should be reachable via token-secured endpoints so a future mobile app can plug in immediately. • Admin panel: manage users, ads, payment disputes, referral payouts, and site-wide settings from a single place. • Responsive UI: modern, clean design that works on desktop, tablet, and mobile browsers. Tech stack is flexible, but I lean toward widely supported frameworks such as Node.js + React or Laravel + Vue. Whichever you choose, please outline why it’s the best fit and how you’ll structure the codebase for maintainability and scaling. I will provide the domain, basic branding assets, and hosting environment. You’ll handle setup, development, testing, and a short handover session with documentation so I can opera...

...hybrid architectures are preferred. The website is already live, so the work will involve integrating AI into the existing frontend/backend rather than building from scratch. Scope of Work (High-Level) Review existing Web3 website architecture Propose suitable AI use cases and technical approach Integrate AI models/APIs with the platform Connect AI features with blockchain data and smart contracts where relevant Ensure performance, security, and maintainability Documentation and basic testing Skills & Experience Required Strong experience with Web3 technologies (smart contracts, wallets, blockchain data) Experience integrating AI/ML models or AI APIs Frontend and backend web development experience Understanding of security and privacy best practices Abilit...

...behaviour across mobiles, tablets, and desktops. Here’s what I need from you: • A modern multi-page layout (think Home, About, Services, Contact) coded from scratch in semantic HTML and well-organised CSS. • Consistent styling aligned with the brand colours and fonts I will supply. • Fully responsive grids or flexbox so each page looks polished on all major browsers. • Lightweight code—no external frameworks unless a small, well-justified utility library truly speeds development. • A packaged delivery (zipped project folder) that I can drop straight onto my hosting with nothing else to configure. I’ll provide text, logos, and any imagery; you handle the page structure, styling, and testing. If you can show previous static sites that hi...

...plus real-time shipping options for physical orders. • Customer accounts, order history, and automated email receipts. • Easy-to-use admin area where I can add new products, change prices, and monitor sales without touching code. • Basic on-page SEO best practices and fast-loading pages. Preferred platforms are WooCommerce on WordPress or Shopify, but I’m open to other proven e-commerce frameworks if you can justify the choice. Deliverables 1. Fully functional website deployed on my hosting or a recommended host. 2. Custom theme or professionally customized template aligned with my brand guidelines. 3. Setup of up to 10 sample products (split between physical and digital) to demonstrate workflow. 4. Payment gateway and shipping rules configured ...

...milestone‑based payments. Partners manage assigned cases, review documents, set tasks, and communicate via chat. An admin oversees everything—users, cases, payments, and analytics—with full financial control. The frontend is already built (≈90% complete) as a single‑page application (HTML/CSS/JS). We now need a full backend (API, database, file storage, real‑time messaging), a partner portal, an admin panel, and integration with external services (e‑signature, payment gateway). Minor frontend tweaks are also required to connect the UI to the live backend. What’s Already Done (Frontend) Program/service catalog browsing Registration & login (UI + local storage simulation) Multi‑step onboarding questionnaire Case creation and service sele...

I need an experienced and n8n developer to build a...interface with and React - Create form validation and submission handling - Connect to n8n using webhooks or REST APIs - Configure n8n to process and route the submitted data - Integrate at least one external service or API - Display workflow results and error messages in the dashboard - Add basic loading states and secure environment-variable configuration - Test the complete frontend-to-n8n workflow The code should be clean, reusable, and easy to extend. I will provide the exact workflow requirements, credentials, and design direction to the selected freelancer. Please apply only if you have practical experience with both and n8n. Include a brief example of a similar automation project you have completed.

We are seeking a skilled freelance developer to assist with the development and maintenance of our e-learning platform, focusing on real-time chat and communication features. Project Name: [Insert Your Project/Startup Name] Responsibilities: Collaborate on building responsive frontend interfaces using React and HTML/CSS. Assist with backend API development using Node.js or Python. Integrate database systems like MongoDB or PostgreSQL for user data and chat history. Implement core functionality including real-time text chat, audio calling integration (e.g., WebRTC/Agora), and push notifications. Requirements: Strong proficiency in full-stack web development. Hands-on experience with real-time communication protocols (WebSockets, WebRTC). Prior experience building interactive messagin...

Overview: We are seeking an experienced full-stack developer or agency to build an AI-powered OCR Challan Processing & Automated Billing System. The solution will automatically read uploaded challan images/PDFs, extract relevant data, group them shop-wise, and trigger automatic PDF invoice g...validation and duplicate detection. Shop-wise Segregation & Counter: Separate challans by customer/shop and automatically track count (e.g., 198 → 199 → 200). Automated Invoicing: Auto-generate PDF invoices (via PDFKit) at the 200-challan threshold and send them via automated email. Dashboard: Real-time view of uploaded, processed, and pending challans with shop-wise summaries. Tech Stack: Frontend: React.js Backend: Node.js (Express) Database: PostgreSQL OCR & PD...

...architecture diagrams, and performance tables, and every element must stay exactly where it is on the page—headings, figure numbers, table captions, footnotes, everything. Only the language changes; the layout does not. Because the piece is earmarked for formal publication, I expect precise terminology, consistent tone, and zero tolerance for ambiguity or machine-style phrasing. References to frameworks, model names, or metrics (e.g., PyTorch, Transformer-based encoder accuracy, ROC-AUC) must be rendered in the same professional style used by leading AI journals. If a sentence can carry more than one meaning, add a short translator’s note so we can verify intent together before final sign-off. Deliverables • A fully translated Word file that mirrors the Japan...

I have a project in mind but haven’t had the chance to pi...rough concept, ask the right questions, and turn my loose ideas into a clear, actionable plan. Here’s what I need: • A brief discovery call to understand my goals, audience, and any constraints • A concise requirements document summarising the key features and priorities • A high-level timeline with logical milestones and deliverables • Practical recommendations on tools, platforms, or frameworks that fit the scope • Guidance on next steps so I can move from concept to execution confidently If you’re skilled at translating vague visions into structured roadmaps and can communicate in plain language, I’d love to hear how you’d approach this engagement and see e...

I have roughly ten static HTML pages that must be rebuilt in WordPress and be ready to go live no later than Tuesday. The new site should mirror the current layouts while allowing for a few subtle design refinements to smooth typography, spacing, and mobile break-points—nothing drastic. All copy and the logo are already pre...Hand over a site that is fully tested, secure, and ready to be pointed to the live domain. Time is tight, so clear milestones and frequent check-ins will help keep everything on track. My overall budget is capped at 4,500; please plan your hours accordingly. Start your bid with “Hey” so I know you read everything, then outline how you’ll meet the Tuesday deadline and detail any plugins or frameworks you intend to use. I’ll r...

...top scores. • Homepage hero section introducing the test and its benefits; quick navigation to Typing Test, Practice, Leaderboard, Blog and About pages. • Blog and About can be simple, static HTML for now—just match the site styling so everything feels cohesive. Tech stack & hand-off The entire project should be built with clean, well-commented HTML, CSS and vanilla JavaScript; no heavy frameworks are required. I’ll need the complete, organised source code plus any asset files so I can deploy instantly or extend later. Acceptance checklist 1. Site renders flawlessly on Chrome, Firefox, Safari and Edge at phone, tablet and desktop breakpoints. 2. Timers, real-time metrics and leaderboard have been manually tested end-to-end. 3. Code is neatl...

...collection, users/roles, banners, website content, pages, FAQs, notifications, settings, etc. Full CRUD, role-based permissions, bulk CSV/Excel import/export and audit logs are required. Existing Emergent code should first be technically audited and reused/enhanced wherever suitable; weak portions may be rebuilt. The final platform must be responsive, secure, scalable and production-ready with complete frontend, backend, database, APIs and Admin/Patient/Staff dashboards. Please apply only if you have experience building complex full-stack platforms/admin dashboards. Share relevant projects, proposed technology stack, timeline and fixed-price quotation. Complete source code, database, deployment access and ownership must be handed over after completion.....

I am building a browser-b...CMS) to generate the UI puzzles (e.g., dragging and dropping collected words to build a sentence). Why You Want This Job:Zero Guesswork: I am not asking you to design the game. The mechanics, art direction, and exact JSON data structures are fully AI/Backend Integration Required: The game strictly reads JSON props passed down from the parent React site. You only have to build the frontend engine and mechanics. Future Work: If the MVP is successful, there will be ongoing contract work to expand the islands, add new puzzle types, and integrate 3D :Please reply with a link to at least one web-based 3D project you have built using React Three Fiber / Three.js. Start your proposal with the word "Lexicon" so I know you read the details.

...intuitive at smaller deployments without requiring future rewriting.* Deliverables include full integration with an emphasis on scalability/performance security/backup recovery plans/documentation/deployment setup. Budget parameters highlight the founder funding this solo – passionate belief over rates mentioned. Preferred level expertise Artificial Intelligence backend scalable core distributed db Frontend focus....

We are looking for an experienced Full-Stack Developer with strong OpenAI API experience to build a modern SaaS web application that generates data analysis scripts using AI. The platform will allow users to describe their data analysis requirements or provide a...Full-stack web application Secure authentication and authorization User roles (User / Admin) OpenAI API integration Secure API key handling Database architecture for users, generations, subscriptions and usage Token/usage tracking Subscription system Clean and maintainable code REST API or equivalent backend architecture Production-ready deployment Preferred technologies: React / for frontend and Node.js, Python, or Laravel for backend. Equivalent technologies are welcome if the developer can demonstrate strong experien...

...appropriate Abuse protection Block enforcement Report handling Proper secret management 24. Cross-Device Verification Every feature must be tested: User A → Backend → User B Especially: Username Avatar Matching Chat Typing Reactions Voice call End chat Recent Connections Reconnect Accept Later Decline Block Delete history Privacy tracker 25. Production-Ready Requirement Every feature must be: Frontend + Backend + Redis + Socket synchronization + Error handling + Security + Cross-device tested + Production ready....

...Word, a list of newly identified academic sources with DOI/link information, validated measurement scales with their original sources, and a proposed conceptual framework/hypotheses. A Zotero, Mendeley, or EndNote reference-library export would also be appreciated. If you have previous experience with Master’s theses, dissertations, journal literature reviews, quantitative research, conceptual frameworks, or validated measurement scales, please share relevant examples. Experience in AI, innovation management, logistics/supply chain management, or information systems would be especially valuable. Please also let me know your proposed timeline and briefly explain how you would approach the project....

...and is being developed into a larger digital marketplace. A website has already been developed, so this is not a project starting from zero. We need a developer to review the existing code and understand the current architecture. The first step will be a technical audit of the existing platform. You will identify completed, incomplete and problematic features. You will also review the backend, frontend, database, APIs and overall performance. The platform will include business accounts, customer accounts, subscriptions and product/service listings. It will also include an administration dashboard and business management features. Payment integration, notifications, search, reviews and other marketplace functionalities are required. Mobile application development and integration m...

...OTP/notification routing, and a basic administrative management panel. --- ## 2. Technical Stack & Requirements (Recommended) * **Backend Framework:** Node.js (Express/NestJS) OR Python (FastAPI/Django) * **Database:** PostgreSQL (Relational database for structured QR mapping and vehicle relationships) * **Caching/Session:** Redis (For OTP storage, rate-limiting, and short-term link verification) * **Frontend:** React.js / or Vue.js (Mobile-first responsive design, PWA-ready) * **Cloud Infrastructure:** AWS / Google Cloud / DigitalOcean (Docker containers, secure environment) * **Third-Party Integrations:** Twilio / Firebase / Infobip (For SMS/WhatsApp OTP & Instant Alerts) --- ## 3. Database Architecture & Schema Design To guarantee data privacy and extreme spee...

Hi, I’d love to help you maintain your MVP and support you in creating a stable, scalable product for the long term. I have solid experience in front-end development using modern frameworks, with a strong focus on clean UI/UX, performance, and maintainable code. Along with development, I also ensure proper bug tracking and resolution workflows so your system stays reliable as it grows. I’m comfortable working with tools like Jira, Trello, or custom tracking systems to log, prioritize, and fix issues efficiently. For your MVP, I can: Develop a responsive and user-friendly front end Integrate APIs smoothly Identify, track, and resolve bugs systematically Maintain clear communication with regular updates Collaborate closely to improve features and user experience over t...

Project Title: Full-Stack Online Registration Form & Database Integration Project Overview: I need a secure, user-friendly, and responsive Online Registration Form web application. The system should collect user details, validate inputs, and securely store the records in a backend database with an easy-to-use administrative interface. Key Requirements & Features: Frontend Form: A clean, modern, and mobile-responsive registration form built with HTML5, CSS3, and JavaScript (or framework of choice). Includes real-time input validation (email format, phone numbers, required fields). Backend & Database: Secure server-side processing (e.g., Node.js, Python/Django, PHP, or similar) connected to a reliable database (MySQL/PostgreSQL) to handle data insertion safely against ...

...my divorce, specifically focusing on the division of assets. Key areas of expertise needed include: - Real estate property valuation and division - Business ownership assessment and division - Retirement accounts division The ideal candidate should have: - Extensive experience in high-net-worth divorce cases - Strong negotiation skills - Knowledge of tax implications and legal frameworks related to asset division Please provide relevant experience and qualifications in your bids. I want to do most of the paperwork and will require your help in setting up HR1, RX1 RX1C8, LSPO and section 3 freezing order and interim maintenace pending suit. So I need a hybrid approach as i have no access to marital money. I will be renting for a month untill I lock all the ...

Magento 2: Optimise Cache, Indexing & Sync Routines Job Description: We are looking for an experienced Magento 2 Developer to resolve an issue where product changes (Price, Stock, Title, Description) in our CRM are not reliably updating on our Magento 2 website due to caching and indexing delays. Outcome: For product price, stock, title and description to reliably reflect on the frontend of the site at least every 3 hours Key Tasks & Scope: Establish a 3-Hour Cache/Index Routine Implement an automated routine (every 3 hours) to purge relevant Magento caches, clear Varnish cache, and reindex targeted data (Price, Inventory/Stock). Note: Must be efficient—avoid full-site reindexing or full cache flushes if targeted updates can be used. £50 max, must be comple...

...read the existing codebase, grasp the current architecture, and then drive it to production quality. Frontend improvements are the top priority. I’m aiming to add several new features to the React interface while keeping the look and feel consistent with what’s there now. Along the way you’ll also connect the app to Firebase services already configured in the repo and wire up the planned chatbot modules. Once the missing pieces are in place, the final step is a clean deployment—preferably through a CI/CD flow—so the app is live, stable, and easy to update. Deliverables • Implement the agreed-upon React features and UI tweaks. • Integrate the existing chatbot logic into the frontend and backend endpoints. • Ensure MongoD...

I want a lightweight WordPress plugin that ...become the new ALT for selected images. • A file-list style picker (checkboxes or similar) so I can choose exactly which images receive that text; it should not force the change on the entire library. • When I press “Apply”, the plugin must replace the existing ALT value entirely—no prefixes, no suffixes, just the text I entered. Please keep the interface native to WordPress, avoid bulky frameworks, and make sure the code is fully GPL-compatible. The finished deliverable is a .zip I can upload through the normal “Add Plugin” screen plus a short read-me covering installation, usage, and uninstall steps. Compatibility with current stable WordPress and the standard Media Library is essential; no ...

...candidates located in the U.S. Eastern or Central time zones, particularly on the East Coast or in the Midwest. This is a preference rather than an absolute requirement, but availability during U.S. Eastern business hours will be important. Current Project Status The platform already includes: Production web application Responsive desktop and mobile UI Existing PWA architecture React / TypeScript frontend Supabase backend and authentication Role-based user authority Business onboarding workflows Product and catalog management Ordering and approval workflows Production database and security controls Email infrastructure Notification architecture currently being finalized Existing production source code Stable backend environment The core business architecture is already estab...

Project Title: Mobile Responsive Layout for Existing Website Description: I have already completed my website, including the frontend, backend, database integration, and desktop layout. All functionalities are fully working and tested. Currently, I need an experienced Frontend/UI Developer to create and optimize the mobile-responsive version of the website. Requirements: • Convert the existing desktop design into a clean and professional mobile layout. • Ensure responsiveness across different mobile devices and screen sizes. • Maintain the current design language, branding, and functionality. • Fix any mobile UI/UX issues, spacing, alignment, and responsiveness problems. • No backend work is required. • No new features are required; only mobi...

...stage of the IRDA Cyber Security Audit required for account renewal. At present we have virtually no formal artefacts, so you will be building the full documentation suite from the ground up. Core items include our cybersecurity policies, incident-response plans, access-control procedures and any additional processes the audit checklist demands. You’ll be free to introduce industry-standard frameworks and tooling provided they satisfy IRDA guidelines. Once the documents are in place I also want your guidance during the actual compliance cycle—answering auditor queries, closing gaps, and keeping the material evergreen for future renewals. If you already work with an authorised audit firm, feel free to propose them; otherwise you can help us identify and onboard a sui...

I’m building a mobile-friendly web app and need an experienced developer to turn my concept into a polished, deployable product. The project is firmly focused on the web-app approach (no native or hybrid layers), so you should be fully comfortable with responsive front-end frameworks such as React, Vue, or Angular and a lightweight back-end or serverless setup that keeps load times fast. The core requirement is seamless social media integration. Users must be able to: • Sign in quickly with their existing Facebook, Google, or Twitter accounts • Share selected in-app content to those same networks without friction • Grant and revoke permissions from a clear, secure settings panel Beyond that, I’m open to your recommendations on best-practice UX, UI p...

...reports • Employee reports • Project reports • Management dashboard Pending Development Work Some completed modules require enhancement and additional development: Frontend Improvements • Mobile responsive menu implementation • UI/UX refinements • Dashboard improvements Functional Features • Blog search and filtering • Product search and filtering • Contact form integration • Hire form integration Admin Features • Blog management panel • Product management panel • Content management improvements Backend & Database • MongoDB optimization • Additional APIs • Validation improvements • Performance enhancements Technology Stack Frontend • React.js • React Router • Axios &bull...

...estético/mecánico, inscripción RUNT y placas). Lógica de Consolidación Logística (Contenedor Cerrado): El algoritmo debe permitir al usuario seleccionar la importación conjunta de 1, 2, 3 o más vehículos en un mismo contenedor, prorrateando automáticamente el flete marítimo, el seguro y los gastos de vaciado para liquidar una importación consolidada. 2. Módulo de Catálogo, Fichas Técnicas e Inventarios (Frontend) Vitrina Estilo Manheim: Interfaz de usuario de alto rendimiento con filtros avanzados por Marca, Modelo, Versión, Año, Tipo de Carrocería, Puertas, Pasajeros, Color Interior/Exterior, Kilometraje, Origen, Combustible, Tipo de Motor, Cilindraje,...

...visually accessible font such as Calibri, Arial or Aptos, and this should be font size 12. Referencing You should use APA7 referencing for all academic work. Research & Sources Work primarily with peer-reviewed academic journals and authoritative books by recognised scholars; steer clear of popular blogs or generalist websites. Feel free to introduce relevant developmental or sociolinguistic frameworks—only where they strengthen the critique—while keeping the focus on evidence rather than exposition. Deliverables • Essay 1 (≈750 words) with in-text citations and reference list in APA 7. • Essay 2 (≈750 words) with in-text citations and reference list in APA 7. Please return both pieces in an editable Word or Google Doc so I can run a q...

...leader who can drive solutions from architecture and development through deployment, monitoring, and operationalization. ## Key Responsibilities * Architect, design, and implement end-to-end AI, ML, and Generative AI solutions. * Translate business requirements into scalable, secure, and production-ready technical architectures. * Develop and integrate AI/ML solutions using Python, APIs, AI frameworks, and cloud services. * Design solutions using *LLMs, RAG, embeddings, vector databases, vector search, and agentic AI*. * Build capabilities for model training, deployment, inference, evaluation, monitoring, and lifecycle management. * Implement *MLOps and LLMOps* practices including CI/CD, model and prompt versioning, automated testing, observability, and monitoring. * Inte...

...Knowledge of SQL and data transformation • Experience optimizing Power BI reports and models • Understanding of authentication, permissions, and secure embedded analytics • Good communication and problem-solving skills Nice to Have: • Experience with Azure • Experience with Power BI REST APIs • Experience with Python • Experience with Microsoft Fabric • Experience with React, , or other frontend frameworks • Experience building SaaS dashboards or multi-tenant analytics platforms Deliverables: • Production-ready Power BI dashboards • Optimized data models and DAX measures • Power BI Embedded integration • User/role-based access and security • Data refresh and integration setup • Documentation and k...

...or sensitive information. * User A must not be able to modify or delete User B’s information. * A normal user must not be able to access administrator functionality. * A normal user must not be able to change their role or privileges. * Unauthenticated users must not be able to access protected APIs. The security controls must be enforced on the backend/server side and should not rely only on frontend restrictions. Scope of Testing 1. Web Application Security Test the complete web application, including: * Authentication and login * Registration * User profiles * Product listing and management * Product browsing * Rental functionality * Transactions and payments * Chat and messaging * KYC functionality * Notifications * Search * User-specific data * Administrative func...

I need a clean, mobile-friendly online registration form built and embedded into my websi...organised. Key expectations • A single, responsive page or modal that matches my site’s look and feel • Standard client-side controls to prevent empty fields and obvious typos (think basic email or phone checks) • Clear success / error messages so users know their registration went through • Simple admin access to view, search, and export entries If you already have favourite libraries or frameworks—React, Vue, plain HTML/CSS/JS—feel free to suggest what you think is quickest and most reliable. I’m open to your recommendation on where to host the script and store the data. Please tell me how you’d approach the build, any tools you&r...

...their trip. I want the overall UI/UX to be modern, clean and easy to use, with a similar feel and simplicity to Skyscanner, but with our own branding and design. The app will be built with Flutter for both Android and iOS, with API integrations for flights, hotels and transportation. I’m looking for someone who has experience building travel, booking or marketplace apps and can create both the frontend and the necessary backend/API integration. Please send examples of similar work, estimated timeline and price....

I'm seeking a skilled designer to create a minimalist, modern, or classic design for the entire platform at Requirements: - Design for the entire platform - Include all specific elements: Navigation menu, Hero banner, Featured products/services. Ideal skills & experience: - Proven portfolio in modern/minimalist/classic designs. - Experience with comprehensive platform designs. - Strong UI/UX principles.

I need a web-based BISAK employer database to manage work placements and streamline communication between stakeholders. Key functionalities include: - Tracking work p...stakeholders. Key functionalities include: - Tracking work placements - Automating annual placement requests - Streamlining documentation - Facilitating parental communication - Creating a portal for staff, parents, students, and companies Ideal skills and experience: - Database development - Web application design - Experience with user authentication and role-based access - Familiarity with frontend and backend technologies - Strong organizational skills to ensure all functionalities are integrated smoothly Looking forward to a collaborative approach to build long-term employer relationships for our careers a...

...& Semantic Search: Set up and optimize a vector database (e.g., Chroma, Pinecone, Weaviate, or pgvector) for hybrid/semantic retrieval. • LLM Pipeline: Integrate LLMs (OpenAI GPT-4/3.5, Claude, or open-source models) with prompt chaining that provides accurate answers and explicit source citations. • Backend & API: Build secure, low-latency REST/WebSocket endpoints using Python (FastAPI). • Frontend Interface: Lightweight chat widget or React component ready to embed into our platform. Key Acceptance Criteria Sub-3 second latency for end-to-end question retrieval and response generation. Grounded responses strictly based on retrieved context to prevent hallucinations. Clean, modular codebase provided in a GitHub repository with Docker setup scripts an...

Project Details $15.00 – 25.00 USD per hour Title: Geospatial Backend Developer Needed for Google Earth Engine Integration Project Description: We have built an interactive web application prototype that serves as a powerful dashboard for geospatial analysis. The frontend is built with and React, and it currently simulates the display of various satellite imagery layers (e.g., NDVI, Landsat, Sentinel-2) using mock data and static tile URLs. The goal of this project is to replace these mock integrations with a live, dynamic backend service. We need an experienced developer to build the core data pipeline that will connect our application to real satellite imagery APIs, with the initial focus on Google Earth Engine, and later Planet and Blacksky imagery. This is the first and ...

... backend, database, architecture and current functionality, identify weaknesses, and then fix, improve and complete the platform. Experience with SaaS, recruitment platforms, online testing, assessment systems or proctoring is highly preferred. 1. Security – Highest Priority The current platform requires a major security review. You will need to: * Perform a full security audit. * Secure frontend, backend, APIs and database. * Implement proper authentication and role-based access. * Protect candidate and employer data. * Prevent unauthorized access to tests, answers and results. * Prevent manipulation of scores/results. * Secure assessment questions and APIs. * Identify vulnerabilities and attack vectors. * Implement appropriate logging and monitoring. * Make the platf...